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[ace-bugs] Re: [ace-users] plugins and ACE configurator framework

Hi Francesco,

>> C++NPv2 chapter 5 discusses the ACE Service Configurator Framework,
>> and chapter 19 in APG has more tutorial information on the topic.

Please see

http://www.cs.wustl.edu/~schmidt/ACE/

for a website that contains links to more information on these books.

Thanks,

        Doug

>> Examples from these are in ACE_wrappers/examples/C++NPv2 and
>> ACE_wrappers/examples/APG/Svc_Config, respectively.
>> 
>> Best regards,
>> 
>> -Steve
>> 
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>> --
>> Steve Huston, Riverace Corporation
>> Co-author of "C++ Network Programming" and "The ACE Programmer's
>> Guide"
>> Books, ACE kit and support info at http://www.riverace.com/ 
>> 
>> > -----Original Message-----
>> > From: owner-ace-users@cse.wustl.edu 
>> > [mailto:owner-ace-users@cse.wustl.edu] On Behalf Of Francesco
>> Formenti
>> > Sent: Tuesday, July 06, 2004 11:04 AM
>> > To: ace-users@cs.wustl.edu
>> > Subject: [ace-users] plugins and ACE configurator framework
>> > 
>> > 
>> > Hi all
>> > 
>> > We have a question about ACE Service Configurator framework:
>> > we are writing an application server that listen on a socket; When a
>> 
>> > call is accepted,
>> > it spawns a new process that read the incoming message, parse it, 
>> > executes a service then exits.
>> > 
>> > The type of service started depends on the received message; this 
>> > service is stored in a separate
>> > .so (.dll) and is dynamically loaded.
>> > 
>> > This is quite similar to mplayer or apache plugins (modules). 
>> > Our goal 
>> > is to develop many .so (.dll)
>> >  using (almost) the same interface loading the desired 
>> > library at runtime.
>> > 
>> > We are developing the code using ACE_Service_Configurator and 
>> > ACE_Service_Object.
>> > We have made our .so based on a class derived from
>> ACE_Service_Object:
>> > 
>> > class ACE_Svc_Export our_sample_lib : public ACE_Service_Object {
>> >  public:
>> >     our_sample_lib (void);
>> >     ~our_sample_lib (void);
>> >     int init (int argc, char *argv[]);
>> >     int fini (void);
>> >     int suspend (void);
>> >     int resume (void);
>> >  private:
>> >     int action_one(something);
>> >     int action_two(something);
>> >     int action_three(something);
>> > 
>> > };
>> > 
>> > Please, do you think this could be the right way to follow?
>> > Do you have any suggestion?
>> > Could you tell us what could be the right example in ACE doc 
>> > directory 
>> > or in one of the ACE books?
>> > Thank you!
>> > 
>> > Best regards.
>> > Francesco
>> > 
>> > 
>> > 
>> 
>> 
>> 
































































































-- 
Dr. Douglas C. Schmidt, Professor           TEL: (615) 343-8197
Electrical Engineering and Computer Science FAX: (615) 343-7440
Vanderbilt University                       WEB: www.cs.wustl.edu/~schmidt/
Nashville, TN 37203                         NET: d.schmidt@vanderbilt.edu

0
Douglas
7/6/2004 4:06:33 PM
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[ace-bugs] Re: [ace-users] DCLP and ACE
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[ace-bugs] Re: [ace-users] Contribution to ACE
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[ace-bugs] Re: [ace-users] ACE Site Down !!!!!!!!
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[ace-bugs] Re: [ace-users] ACE-warnings
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[ace-bugs] Re: [ace-users] Moving to ACE?
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[ace-bugs] Re: [ace-users] ACE
Hi Srujan, >> I am using ACE 5.1 on Solaris. How can I find out that IPv6 is >> enabled in my build. I couldnt use the ACE::ipv6_enabled() >> function. Also, in ACE5.1 how can I detertmine at run time that >> IPv6 has been enabled on the machine. ACE 5.1 is ANCIENT. Please upgrade to a more recent version of ACE, e.g., ACE 5.4.4 <deuce.doc.wustl.edu/Download.html> or one of the commercially supported versions, as discussed at http://www.cs.wustl.edu/~schmidt/commercial-support.html Thanks, Doug -- Dr. Douglas C. Schmidt Professor and Associate Chair Electrical Engineering and Computer Science TEL: (615) 343-8197 Institute for Software Integrated Systems WEB: www.dre.vanderbilt.edu/~schmidt Vanderbilt University, Nashville TN, 37203 NET: d.schmidt@vanderbilt.edu ...

RE: [ace-users] plugins and ACE configurator framework
Hi Francesco, Thanks for your interest in ACE and the ACE books! C++NPv2 chapter 5 discusses the ACE Service Configurator Framework, and chapter 19 in APG has more tutorial information on the topic. Examples from these are in ACE_wrappers/examples/C++NPv2 and ACE_wrappers/examples/APG/Svc_Config, respectively. Best regards, -Steve -- Steve Huston, Riverace Corporation Co-author of "C++ Network Programming" and "The ACE Programmer's Guide" Books, ACE kit and support info at http://www.riverace.com/ > -----Original Message----- > From: owner-ace-users@cse.wustl.edu > [mailto:owner-ace-users@cse.wustl.edu] On Behalf Of Francesco Formenti > Sent: Tuesday, July 06, 2004 11:04 AM > To: ace-users@cs.wustl.edu > Subject: [ace-users] plugins and ACE configurator framework > > > Hi all > > We have a question about ACE Service Configurator framework: > we are writing an application server that listen on a socket; When a > call is accepted, > it spawns a new process that read the incoming message, parse it, > executes a service then exits. > > The type of service started depends on the received message; this > service is stored in a separate > .so (.dll) and is dynamically loaded. > > This is quite similar to mplayer or apache plugins (modules). > Our goal > is to dev...

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RE: [ace-bugs] Re: [ace-users] ACE & POSIX
Hey there's a thought. ;-) I like it. Kindly, Graham -----Original Message----- From: owner-ace-bugs@cse.wustl.edu [mailto:owner-ace-bugs@cse.wustl.edu] On Behalf Of Stephen Torri Sent: Monday, June 14, 2004 9:38 PM To: Douglas C. Schmidt Cc: ace-bugs@cs.wustl.edu Subject: Re: [ace-bugs] Re: [ace-users] ACE & POSIX Douglas C. Schmidt wrote: > Hi Folks, > > >>Yes, but it sure would make the ACE libraries smaller and potentially >>easier to maintain. A lot of the OS specific code would go away. ;-) > > > Ah, but there's rub! It will actually make ACE much larger and harder > to maintain since there will be many platforms/compiler that don't > support the new standard for many years, so it will be necessary to > support multiple variants! Having said that, I welcome these > enhancements since I think they will help improve the relevance of C++ > (cf Java), but it won't make ACE smaller and easier to maintain > (unfortunately)! > > Take care, > > Doug So consider it a new opportunity to develop new design patterns, write more papers and books, and become financially independent. ;) Stephen ...

Re: [ace-bugs] RE: FW: [ace-users] ACE & POSIX
Hi Graham, >> Having spent most of my time in the murky world of real-time >> embedded systems (for the medical industry) I can tell you this. >> It is quite unlikely that the "old dodgers" (according to your >> definition I would fall into that category) would upgrade their >> version of ACE. If the current (or older) version of ACE works why >> upgrade? That's not been our experience working with scores of companies during the past decade. There are many companies who are stuck using older compiler platforms, but are quite happy to upgrade to newer versions of ACE, particularly when those versions fix important bugs, improve compile-/run-time performance, and/or add useful features. In fact, companies like OCI do a good business supporting precisely these sorts of uesrs. >> The old gnu 2.7.2 compiler that was mentioned earlier is most >> likely the compiler that is used by Windriver's IDE Tornado (which >> I use daily). Tornado 2.0.2 for Intel CPUs uses a snapshot of the >> (2.7.2) gnu compiler (Although Windriver doesn't like to admit it. >> I don't know how they get around the open source rules.). Even the >> "new" version of Tornado coming out this fall uses a newer but >> still older version of the gnu compiler. But rumor has it that the >> Diablo compiler, which has been recently only available for >> Motorola C...

[ace-bugs] Re: [ace-users] How to use ACE frameworks to implement mutualy dependent services?
Hi Boris, Thanks for using the PRF. >> ACE VERSION: 5.4 >> >> HOST MACHINE and OPERATING SYSTEM: >> Win32, Linux, Solaris >> >> TARGET MACHINE and OPERATING SYSTEM, if different from HOST: >> >> COMPILER NAME AND VERSION (AND PATCHLEVEL): >> >> SYNOPSIS: How to use ACE frameworks to implement mutually dependent >> services >> >> DESCRIPTION: >> I've develop a network app. It offers some services. When app >> starts it need to load configuration from DB, init and run >> configured services. Each kind service can be represented as group >> of similar services and app fails if all services from some group >> fails. Each service does its initialization and functioning >> independently of other services. So if it fails it need to notify >> some controler about this condition and let him to make some >> decision. Similary, there are some kind of services that need >> other kind of services to be properly initialized and running >> before they can be started, so there are also neccessary some >> kind of notification. >> >> It is very undesirable to make hard link between related services. >> After exploring ACE frameworks i still cannot realize which classes >> and how can i use to implement my app in adaptive way ;) Of >> cour...

Re: [ace-users] [ace-bugs] [ACE Autoconf setup]: [ACE_HAS_MUTEX_TIMEOUTS ./configure error under LINUX]
Hi, Thanks for using the PRF form. Can you check the config.log file if you = get this error only once or on more files? Regards, Johnny Willemsen Remedy IT Postbus 101 2650 AC Berkel en Rodenrijs The Netherlands www.theaceorb.nl / www.remedy.nl =20 *** Integrated compile and test statistics see = http://scoreboard.theaceorb.nl *** *** Commercial service and support for ACE/TAO/CIAO *** *** See http://www.theaceorb.nl/en/support.html *** <korf.peter@arcor.de> wrote in message = news:<mailman.1605.1185800546.5286.ace-bugs@mail.cse.wustl.edu>... Hi, ACE VERSION: 5.5.9 HOST MACHINE and OPERATING SYSTEM: Linux 2.6.18.8-0.3-default #1 SMP x86_64 x86_64 x86_64 GNU/Linux SuSE 10.2 COMPILER NAME AND VERSION (AND PATCHLEVEL): gcc (GCC) 4.1.2 20061115 (prerelease) (SUSE Linux) SYNOPSIS: ACE_HAS_MUTEX_TIMEOUTS will not defined using the ./configure script due = a compiling error. DESCRIPTION: The function in the ./configure script which checks for = ACE_HAS_MUTEX_TIMEOUTS fails because=20 of (part of config.log):=20 .... configure:100395: checking for mutex timeouts configure:100602: g++ -o conftest -g -O2 -pthread -pipe conftest.cpp = -lrt -ldl >&5 conftest.cpp: In function 'int main()': conftest.cpp:248: error: 'exit' was not declared in this scope conftest.cpp:254: error: 'exit' was not declared in this scope conftest.cpp:260: error: 'exit' was ...

[ace-bugs] Re: [ace-users] Moving to ACE? #2
Hi Roger, >> Could you please explain these kernel problems on Linux? I think there are two problems: .. There are (were) bugs in the Linux implementation of the aio_*() functions. These manifested themselves by failures of the $ACE_ROOT/tests/Proactor_Test.cpp on Linux. .. The Linux kernel implements the aio_*() functions by spawning a thread for each asynchronous request, which sort of defeats the point of asynchronous I/O! Take care, Doug -- Dr. Douglas C. Schmidt, Professor TEL: (615) 343-8197 Electrical Engineering and Computer Science FAX: (615) 343-7440 Vanderbilt University WEB: www.cs.wustl.edu/~schmidt/ Nashville, TN 37203 NET: d.schmidt@vanderbilt.edu ...

[ace-bugs] Re: [ace-users] ACE support for IPv6
Hi Vivek, >> Could anyone send me some documentation or links on how IPv6 is >> handled in ACE and usage related documentation. I believe this is described in the ACE Programmer's Guide book, which you can obtain from http://www.amazon.com/exec/obidos/tg/detail/-/0201699710/qid=1066059513/sr=8-1/ref=sr_8_1/102-5569290-4943326?v=glance&s=books&n=507846 There are also examples in $ACE_ROOT/tests/*IPv6.cpp $ACE_ROOT/tests/*IPV6.cpp Take care, Doug -- Dr. Douglas C. Schmidt, Professor TEL: (615) 343-8197 Electrical Engineering and Computer Science FAX: (615) 343-7440 Vanderbilt University WEB: www.cs.wustl.edu/~schmidt/ Nashville, TN 37203 NET: d.schmidt@vanderbilt.edu ...

[ace-bugs] Re: [ace-users] How to use the IPV6 in ACE?
Hi, Thanks for using the PRF. >> TAO VERSION: 1.3 >> ACE VERSION: 5.3 You definitely want to upgrade to ACE 5.4.1, which you can obtain from the "usual place" at http://deuce.doc.wustl.edu/Download.html >> HOST MACHINE and OPERATING SYSTEM: >> Intel P4/Windows 2000 Server SP4 >> SUN Ultra/ Solaris 8 >> >> TARGET MACHINE and OPERATING SYSTEM, if different from HOST: >> COMPILER NAME AND VERSION (AND PATCHLEVEL): >> VC7.1 >> SUN Workshop Forte C++ 6 update 1 >> >> AREA/CLASS/EXAMPLE AFFECTED: >> N/A >> >> DOES THE PROBLEM AFFECT: >> COMPILATION? >> No >> LINKING? >> No >> EXECUTION? >> No >> >> SYNOPSIS: >> I want to know how to use IPv6 in ACE/TAO and where i can find the docs and examples. Please see ACE_ROOT/tests/INET_Addr_Test_IPV6.cpp ACE_ROOT/tests/Max_Default_Port_Test_IPV6.cpp ACE_ROOT/tests/Multicast_Test_IPV6.cpp ACE_ROOT/tests/Multihomed_INET_Addr_Test_IPV6.cpp ACE_ROOT/tests/Proactor_Test_IPV6.cpp ACE_ROOT/tests/SOCK_Send_Recv_Test_IPV6.cpp for a number of examples. Steve, does APG have any documentation for the IPV6 stuff? Thanks, Doug -- Dr. Douglas C. Schmidt, Professor TEL: (615) 343-8197 Electrical Engineering and Computer Science F...

[ace-bugs] Re: [ace-users] ACE & POSIX]
Hi, >> I'm looking around for a theme to my Thesis (I'm doing a master degree >> in software engineering), and I'm wondering about in doing something in >> that direction (to propose, design and start developing a modern and >> standard compliant "ACE new generation". >> >> If there is any interest in consolidate something in this direction, I >> will glad join this effort with all my "thesis energy" to do so. That would be very cool. As I mentioned in another email, the next generation ACE (ACEng or ACE++ or whatever it should be called) would need to address things like 1. Replace the use of const char *'s with std::string's. 2. Replace the use of the ACE container classes in ACE class interfaces with the appropriate STL equivalent. 3. Replace the use of ACE synchonronization mechanisms with equivalents from BOOST. I'm sure there are many other suggestions that people would like to add, as well. If you're interested in doing an MS thesis on this topic, the key would be to figure out some more fundamental issues (e.g., framework migration, software re-engineering, refactoring, etc.) and then make the ACE modernization project a case study of applying these techniques. It would certainly be an interesting and useful project! If people are interested in doing this we could setup a CVS repo at ISIS. Thanks, Doug -- Dr. D...

[ace-bugs] Re: [ace-users] QoS support on ACE
Hi Sarvo, >> When we compile ACE with QoS Support, can we control the the >> parameters like bandwidth, latency using Application built on ACE? Sure, assuming that your application is running over an IntServ-enabled network! >> I am using "IP over 1394" to create a network of 3 PCs. "IP over >> 1394" driver makes IEEE1394 card to look like ethernet card for >> TCP/Ip stack in linux kernel. So I would like to know, will I be >> able to control and measure parameters like bandwidth, latency and >> Jitter using ACE. Yes. >> I have already built ACE with QoS support by installing RSVP and >> running RSVP daemon. Any ideas or thoughts in this line are >> welcome. Check out the examples in $ACE_ROOT/examples/QOS/ Take care, Doug -- Dr. Douglas C. Schmidt, Professor TEL: (615) 343-8197 Electrical Engineering and Computer Science FAX: (615) 343-7440 Vanderbilt University WEB: www.cs.wustl.edu/~schmidt/ Nashville, TN 37203 NET: d.schmidt@vanderbilt.edu ...

[ace-bugs] Re: [ace-users] ACE & POSIX
Hi Graham, >> I don't think that is a very fair or complete answer to Jay, having >> wondered the same thing myself. I think you've been wondering something different, as I explain below. >> I have read both C++NP books, the 'Ace Programmer's Guide' and used >> ACE for various projects. >> >> For example: >> >> ACE has encapsulated the innards of C++ network programming. ACE is not an >> ISO standard as far as I know. But in JAVA, network programming is part of >> the JAVA standard. So why would that portion of ACE even be necessary if >> network programming were part of the C++ standard? That's a *very* interesting question. As far as I could tell, however, Jay wasn't asking that question.. He was asking about POSIX-compliant operating systems, which have APIs written in C. Much of C++NPv1 (along with the URL I posted) talks about why OO C++ wrapper facades (like the ones in ACE) are more appropriate for developing networked applications than function-oriented C APIs. >> ACE has encapsulated most OS primitives, just like BOOST and a few >> (many?) others. Again, if C++ added semaphores, mutexes, threads >> and etc. to the C++ standard, would they be necessary in ACE? I >> have heard some rumors that this might be added to the C++ >> standard. (Could it be true?) There are efforts afoot in the C++ standardiz...

[ace-bugs] Re: [ace-users] How to Use IPv6 in ACE?
Hi, Thanks for using the PRF. >> ACE VERSION: 5.4.1 >> >> HOST MACHINE and OPERATING SYSTEM: >> SUN Solaris 8 >> >> TARGET MACHINE and OPERATING SYSTEM, if different from HOST: >> COMPILER NAME AND VERSION (AND PATCHLEVEL): >> SUN Forte6 C++ UP1 >> >> CONTENTS OF $ACE_ROOT/ace/config.h [if you use a link to a platform- >> specific file, simply state which one]: >> config-sunos5.8.h >> >> CONTENTS OF $ACE_ROOT/include/makeinclude/platform_macros.GNU (unless >> this isn't used in this case, e.g., with Microsoft Visual C++): >> platform_sunos5_sunc++.GNU >> >> AREA/CLASS/EXAMPLE AFFECTED: >> NO >> >> DOES THE PROBLEM AFFECT: >> COMPILATION? >> NO >> LINKING? >> NO >> EXECUTION? >> NO >> OTHER (please specify)? >> NO >> >> SYNOPSIS: >> I want to know how to use IPv6 in ACE-TAO, and where i can find the documents and examples. Please see http://groups.yahoo.com/group/ace-users/message/38643 for a partial answer to your question. In addition, check out $ACE_ROOT/tests/INET_Addr_Test_IPV6.cpp $ACE_ROOT/tests/Max_Default_Port_Test_IPV6.cpp $ACE_ROOT/te...

[ace-bugs] Re: [ace-users] Using ACE with COM
Hi Zvika, Thanks for using the PRF. >> ACE VERSION: 5.4.2 >> >> HOST MACHINE and OPERATING SYSTEM: >> Windos XP Pro, winsock2 >> >> TARGET MACHINE and OPERATING SYSTEM, if different from HOST: >> COMPILER NAME AND VERSION (AND PATCHLEVEL): >> MSVC6 SP5 >> >> CONTENTS OF $ACE_ROOT/ace/config.h [if you use a link to a platform- >> specific file, simply state which one]: >> #include "config-win32.h" >> >> CONTENTS OF $ACE_ROOT/include/makeinclude/platform_macros.GNU (unless >> this isn't used in this case, e.g., with Microsoft Visual C++): >> >> AREA/CLASS/EXAMPLE AFFECTED: >> [What example failed? What module failed to compile?] >> >> DOES THE PROBLEM AFFECT: >> COMPILATION? NO >> LINKING? NO >> On Unix systems, did you run make realclean first? >> EXECUTION? YES >> OTHER (please specify)? >> [Please indicate whether ACE, your application, or both are affected.] >> >> SYNOPSIS: >> We are working on a big project that involves ACE. We need to interface the >> part that uses ACE to other Windows based applications >> that need to remain unaware of the underlying implementation. The obvious >> method is to use COM,...

[ace-bugs] Re: [ace-users] how to transmit file in ACE
Hi, >> I want to write the program whitch want to transmit file with >> ACE, how can I do it? which method and related classs information I >> should use? To ensure that we have proper version/platform/compiler information, please make sure you fill out the appropriate problem report form (PRF), which is in $ACE_ROOT/PROBLEM-REPORT-FORM $TAO_ROOT/PROBLEM-REPORT-FORM or in $ACE_ROOT/BUG-REPORT-FORM $TAO_ROOT/BUG-REPORT-FORM in older versions of ACE+TAO. Make sure to include this information when asking any questions about ACE+TAO since otherwise we have to "guess" what version/platform/compiler/options you've using, which is error-prone and slows down our responsiveness. >> My project using the Proactor model to communiction between >> client and server. and I can't confirm that if I use >> ACE_Asynch_Transmit_File to transmit the files from all of the >> clients to the server, that the performance will be the bottleneck >> of the system. also, I don't know how to use >> ACE_Asynch_Transmit_File. any body can give any advice will be >> great approciate! There are examples of using the Proactor and ACE_Asynch_Transmit_File in ACE_ROOT/examples/Reactor/Proactor/ Take care, Doug -- Dr. Douglas C. Schmidt Professor and Associate Chair Electrical Engineering and Computer Science TEL: (615) 343-8197 Institute for ...

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